UTIG RESEARCH PROJECTS ARCHIVE

Check out some photos from Leg 192!!

Principal Investigators: J. Mahoney (Hawaii), L. Kroenke (Hawaii), A. Taira (Tokyo), M. Coffin(UTIG), R. Larson (URI), L. Abrams (UNC-Wilmington), O. Eldholm (Oslo), T. Gladczenko (Oslo), A. Saunders (Leicester), G. Ito (Hawaii), D. Bercovici (Hawaii), and P. Wessel (Hawaii)

Funded by: Ocean Drilling Program

A basement drilling transect of the Ontong Java Plateau has been scheduled for late 2000 with the primary objectives of determining: 1) the age and duration of emplacement of the plateau; 2) range and diversity of magmatism; 3) environment of eruption and post-emplacement vertical tectonic history of the palteau; 4) effects of rift-related tectonism; 5) paleogeography of the Plateau (paleolatitude of the OJP at the time(s) of emplacement). Four sites will address these objectives (Fig. 1). Although we will focus on basement objectives at all of the sites, considerable information will also be accrued bearing on the tectonism associated with plateau formation and subsequent deformation, the relationship of plateau emplacement to major paleoclimatic and biospheric changes, and Late Mesozoic-Cenozoic paleoceanography.

Cruise: ODP Leg 192 aboard JOIDES Resolution (2000)

UTIG and affiliated staff: M. Coffin, O. Eldholm, and T. Gladczenko.

Selected Publications

Könnecke, L.K., Coffin, M.F., and Charvis, P., 1998. Early development of the Southern Kerguelen Plateau (Indian Ocean) from shallow wide-angle ocean bottom seismometer and multichannel seismic reflection data, Journal of Geophysical Research, 103, 24,085-24,108.

Frohlich, C., Coffin, M.F., Massell, C., Mann, P., Schuur, C.L., Davis, S.D., Jones, T., and Karner, G., 1997. Constraints on Macquarie Ridge tectonics provided by Harvard focal mechanisms and teleseismic earthquake locations, Journal of Geophysical Research, 102, 5029-5041.

Gladczenko, T.P., Coffin, M.F., and Eldholm, O., 1997. Crustal structure of the Ontong Java Plateau: modeling of new gravity and existing seismic data, Journal of Geophysical Research, 102, 22,711-22,729.

Head, III, J.W., and Coffin, M.F., 1997. Large igneous provinces: a planetary perspective, in Mahoney, J.J., and M.F. Coffin, eds., Large Igneous Provinces: Continental, Oceanic, and Planetary Flood Volcanism, Geophysical Monograph 100, American Geophysical Union (Washington, D.C.), 411-438.

Mahoney, J.J., and Coffin, M.F., editors, 1997. Large Igneous Provinces: Continental, Oceanic, and Planetary Flood Volcanism, Geophysical Monograph 100, American Geophysical Union (Washington, D.C.), 438 pp.

Coffin, M.F., and Gahagan, L.M., 1995. Ontong Java and Kerguelen Plateaux: Cretaceous Icelands? Journal of the Geological Society, London, 152, 1047-1052.

Coffin, M.F., and Eldholm, O., 1994. Large igneous provinces: crustal structure, dimensions, and external consequences, Reviews of Geophysics, 32, 1-36.

Coffin, M.F., and Eldholm, O., 1993. Large igneous provinces, Scientific American, 269 (4), 42-49.